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+%%
+%% This is file `xparse.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% xparse.dtx (with options: `package')
+%%
+%% (C) Copyright The LaTeX3 Project and any individual authors
+%% listed elsewhere in this file.
+%%
+%% This is a generated file.
+%%
+%% This file was generated from file(s) of the xbase bundle.
+%% ---------------------------------------------------------
+%%
+%% This file may only be distributed together with a copy of this bundle.
+%% You may however distribute the bundle without such generated files.
+%%
+%% ======================================================================
+%%
+%% File: xparse.dtx (C) Copyright 1999 Frank Mittelbach, Chris Rowley, David Carlisle
+%% (C) Copyright 2004-2008 Frank Mittelbach, LaTeX3 Project
+%%
+%% It may be distributed and/or modified under the conditions of the
+%% LaTeX Project Public License (LPPL), either version 1.3c of this
+%% license or (at your option) any later version. The latest version
+%% of this license is in the file
+%%
+%% http://www.latex-project.org/lppl.txt
+%%
+%% This file is part of the ``xbase bundle'' (The Work in LPPL)
+%% and all files in that bundle must be distributed together.
+%%
+%% The released version of this bundle is available from CTAN.
+%%
+%% -----------------------------------------------------------------------
+%%
+%% The development version of the bundle can be found at
+%%
+%% http://www.latex-project.org/cgi-bin/cvsweb.cgi/
+%%
+%% for those people who are interested.
+%%
+%%%%%%%%%%%
+%% NOTE: %%
+%%%%%%%%%%%
+%%
+%% Snapshots taken from the repository represent work in progress and may
+%% not work or may contain conflicting material! We therefore ask
+%% people _not_ to put them into distributions, archives, etc. without
+%% prior consultation with the LaTeX Project Team.
+%%
+%% -----------------------------------------------------------------------
+%%
+\RequirePackage{l3names}
+\GetIdInfo$Id: xparse.dtx 748 2008-08-03 19:00:50Z morten $
+ {generic document command parser}
+\ProvidesExplPackage
+ {\filename}{\filedate}{\fileversion}{\filedescription}
+\RequirePackage{l3tlp,l3num,l3toks,l3prg,l3int,l3seq,l3token}
+\def_new:NNn \xparse_already_defined_error_msg:N 1 {
+ \xparse_error:x {
+ Command~name~`\token_to_string:N #1'~ already~defined!
+ }
+}
+\def_new:NNn \xparse_not_yet_defined_error_msg:N 1 {
+ \xparse_error:x {
+ Command~`\token_to_string:N #1'~ not~ yet~defined!
+ }
+}
+\def_new:NNn \xparse_begins_with_end_error_msg:N 1 {
+ \xparse_error:x {
+ Command~`\token_to_string:N #1'~begins~with~
+ `\token_to_string:N \end'!
+ }
+}
+\def_new:NNn \xparse_unknown_arg_type_error_msg:N 1{
+ \xparse_error:x {
+ Unknown~ argument~ type~ `#1'~
+ I'll~ substitute~ it~ with~ `m'~ for~ now.~ Fingers~ crossed...
+ }
+}
+\def_new:NNn \xparse_no_command_implementation_warning:n 1 {
+ \xparse_warning:x {No~ implementation~ for~ `#1'~ defined}
+}
+\def_new:NNn \xparse_error:x 1{\tex_errmessage:D {xparse~error:~#1}}
+\def_new:NNn \xparse_warning:x 1{\io_put_term:x{xparse~warning:~#1}}
+\def_new:NNn \xparse_if_definable:NTF 1 {
+ \cs_free:NTF #1
+ {
+ \xparse_begins_with_end:NTF #1
+ { \xparse_begins_with_end_error_msg:N #1 \use_arg_ii:nn }
+ \use_arg_i:nn
+ }
+ { \xparse_already_defined_error_msg:N #1 \use_arg_ii:nn }
+}
+\def_new:NNn \xparse_if_definable:cTF 0 {
+ \exp_args:Nc \xparse_if_definable:NTF
+}
+\def_new:NNn \xparse_if_redefinable:NTF 1 {
+ \cs_free:NTF #1
+ { \xparse_not_yet_defined_error_msg:N #1 \use_arg_ii:nn }
+ {
+ \xparse_begins_with_end:NTF #1
+ { \xparse_begins_with_end_error_msg:N #1 \use_arg_ii:nn }
+ \use_arg_i:nn
+ }
+}
+\def_new:NNn \xparse_if_redefinable:cTF 0 {
+ \exp_args:Nc \xparse_if_redefinable:NTF
+}
+\def_new:NNn \xparse_begins_with_end:NTF 1 {
+ \group_begin:
+ \exp_args:Nc \xparse_begins_with_end_aux:N {
+ \tlist_head_iii:f { \cs_to_str:N #1 ??}
+ }
+}
+\def_new:NNn \xparse_begins_with_end_aux:N 1 {
+ \if:w \cs_if_eq_name_p:NN #1 \end
+ \group_end:
+ \exp_after:NN \use_arg_i:nn
+ \else:
+ \group_end:
+ \exp_after:NN \use_arg_ii:nn
+ \fi:
+}
+\toks_new:N \l_xparse_grabbed_args_toks
+\toks_new:N \l_xparse_end_environment_args_toks
+\int_new:N \l_xparse_mandatory_args_int
+\int_new:N \l_xparse_total_args_int
+\def_long:NNn \xparse_declare_document_command:Nnn 3{
+ \xparse_prepare_signature:n {#2}
+ \def_protected:Npx #1 {
+ \exp_not:n { \toks_set:Nn \l_xparse_grabbed_args_toks }
+ {\exp_not:c {\token_to_string:N #1}}
+ \toks_use:N \l_xparse_grabbed_args_toks
+ \exp_not:n{ \toks_use:N \l_xparse_grabbed_args_toks}
+ }
+ \def_long:cNn {\token_to_string:N #1}\l_xparse_total_args_int{#3}
+}
+\def_new:Npn \xparse_declare_document_command:cnn {
+ \exp_args:Nc \xparse_declare_document_command:Nnn
+}
+\def_long_new:NNn \xparse_declare_document_environment:nnnn 4 {
+ \xparse_declare_document_command:cnn {#1}{#2}
+ { \group_begin:
+ \toks_set_eq:NN \l_xparse_end_environment_args_toks
+ \l_xparse_grabbed_args_toks
+ #3
+ }
+ \let:cN {end #1} \xparse_parsed_end_environment:
+ \def_long:cNn {end \token_to_string:N \\ #1}
+ \l_xparse_total_args_int{#4}
+}
+\def_protected_new:NNn \xparse_parsed_end_environment: 0{
+ \exp_after:NN \xparse_parsed_end_environment_aux:N
+ \toks_use:N \l_xparse_end_environment_args_toks
+ \group_end:
+}
+\def_new:NNn \xparse_parsed_end_environment_aux:N 1{
+ \cs_use:c {end \token_to_string:N #1 }
+}
+\let_new:NN \DeclareDocumentCommand \xparse_declare_document_command:Nnn
+\def_new:NNn \NewDocumentCommand 1 {
+ \xparse_if_definable:NTF #1
+ { \xparse_declare_document_command:Nnn #1 }
+ \use_none:nn
+}
+\def_new:NNn \RenewDocumentCommand 1 {
+ \xparse_if_redefinable:NTF #1
+ { \xparse_declare_document_command:Nnn #1 }
+ \use_none:nn
+}
+\let_new:NN \DeclareDocumentEnvironment
+ \xparse_declare_document_environment:nnnn
+\def_new:NNn \NewDocumentEnvironment 1 {
+ \xparse_if_definable:cTF {#1}
+ { \xparse_declare_document_environment:nnnn {#1} }
+ \use_none:nnn
+}
+\def_new:NNn \RenewDocumentEnvironment 1 {
+ \xparse_if_redefinable:cTF {#1}
+ { \xparse_declare_document_environment:nnnn {#1} }
+ \use_none:nnn
+}
+\def_new:NNn \ProvideDocumentCommand 1{
+ \cs_free:NTF #1
+ { \DeclareDocumentCommand #1}
+ \use_none:nn
+}
+\def_new:NNn \ProvideDocumentEnvironment 1{
+ \cs_free:cTF {#1}
+ { \DeclareDocumentEnvironment {#1} }
+ \use_none:nnn
+}
+\def_long_new:NNn \DeclareDocumentCommandInterface 3{
+ \xparse_prepare_signature:n {#3}
+ \def_protected:Npx #1 {
+ \exp_not:n { \toks_set:Nn \l_xparse_grabbed_args_toks }
+ {\exp_not:c {impl-#2}}
+ \toks_use:N\l_xparse_grabbed_args_toks
+ \exp_not:n{ \toks_use:N \l_xparse_grabbed_args_toks}
+ }
+ \def_long:cNn {impl-#2} \l_xparse_total_args_int
+ {\xparse_undefined_command_implementation:n{#2}}
+}
+\def_new:NNn \xparse_undefined_command_implementation:n 1{
+ ``#1''
+ \xparse_no_command_implementation_warning:n {#1}
+}
+\def_long_new:NNn \DeclareDocumentCommandImplementation 3{
+ \def_long:cNn {impl-#1}#2{#3}
+}
+\def_new:NNn \xparse_prepare_signature:n 1 {
+ \int_zero:N \l_xparse_total_args_int
+ \toks_clear:N \l_xparse_grabbed_args_toks
+ \int_zero:N \l_xparse_mandatory_args_int
+ \bool_gset_false:N \g_xparse_insert_marker_bool
+ \bool_gset_false:N \g_xparse_allow_par_bool
+ \tlp_gset_eq:NN \g_xparse_ignore_marker_tlp
+ \g_xparse_ignore_spaces_marker_tlp
+ \xparse_parse_signature:n #1 \q_nil
+}
+\tlp_new:Nn \g_xparse_ignore_marker_tlp {}
+\seq_new:N \g_xparse_ignore_marker_seq
+\bool_new:N \g_xparse_insert_marker_bool
+\def_new:cpn {xparse_add_arg_type_>:} #1
+ \xparse_read_arg_type_or_grab_default:n #2{
+ \xparse_add_remaining_m_args:
+ \bool_gset_true:N \g_xparse_insert_marker_bool
+ \int_decr:N \l_xparse_total_args_int
+ \tlist_map_inline:nn{#2}{
+ \xparse_check_and_add_argument_type:N ##1
+ }
+ \xparse_parse_signature:n
+}
+\def_new:NNn \xparse_add_ignore_marker:Nnn 3{
+ \tlp_new:cn {g_xparse #2 _marker_tlp}{#3}
+ \seq_gpush:NC \g_xparse_ignore_marker_seq {g_xparse #2 _marker_tlp}
+ \def_new:cpn {xparse_add_arg_type_#1:}{
+ \tlp_gset_eq:Nc \g_xparse_ignore_marker_tlp {g_xparse #2 _marker_tlp}
+ }
+}
+\xparse_add_ignore_marker:Nnn W{_ignore_nothing}{}
+\xparse_add_ignore_marker:Nnn i{_ignore_spaces}{_ignore_spaces}
+\xparse_add_ignore_marker:Nnn I{_ignore_pars}{_ignore_pars}
+\def_new:NNn \xparse_add_arg_type_P: 0{
+ \bool_gset_true:N \g_xparse_allow_par_bool
+}
+\bool_new:N \g_xparse_allow_par_bool
+\def_new:NNn \xparse_parse_signature:n 1{
+ \quark_if_nil:NTF #1
+ {
+ \xparse_add_remaining_m_args:
+ }
+ {
+ \int_incr:N \l_xparse_total_args_int
+ \xparse_check_and_add_argument_type:N #1
+ \bool_if:NT \g_xparse_insert_marker_bool
+ {
+ \bool_gset_false:N \g_xparse_insert_marker_bool
+ \bool_gset_false:N \g_xparse_allow_par_bool
+ \tlp_gset_eq:NN \g_xparse_ignore_marker_tlp
+ \g_xparse_ignore_spaces_marker_tlp
+ }
+ \xparse_read_arg_type_or_grab_default:n
+ }
+}
+\def_new:NNn \xparse_check_and_add_argument_type:N 1 {
+ \cs_free:cTF {xparse_add_arg_type_#1:}
+ { \xparse_unknown_arg_type_error_msg:N #1
+ \int_incr:N \l_xparse_mandatory_args_int
+ }
+ { \cs_use:c {xparse_add_arg_type_#1:} }
+}
+\let_new:NN \xparse_read_arg_type_or_grab_default:n
+ \xparse_parse_signature:n
+\def_new:NNn \xparse_grab_default_arg:n 1{
+ \toks_put_right:Nn \l_xparse_grabbed_args_toks {{#1}}
+ \let:NN \xparse_read_arg_type_or_grab_default:n
+ \xparse_parse_signature:n
+ \xparse_parse_signature:n
+}
+\def_long_new:NNn \xparse_grab_default_arg_allow_par:n 1{
+ \toks_put_right:Nn \l_xparse_grabbed_args_toks {{#1}}
+ \let:NN \xparse_read_arg_type_or_grab_default:n
+ \xparse_parse_signature:n
+ \xparse_parse_signature:n
+}
+\def_new:Npn \xparse_add_arg_type_m: {
+ \bool_if:NTF \g_xparse_allow_par_bool
+ {
+ \toks_put_right:Nn \l_xparse_grabbed_args_toks {\xparse_allow_par_m:w}
+ }
+ { \int_incr:N \l_xparse_mandatory_args_int }
+}
+\def_new:Npn \xparse_add_remaining_m_args: {
+ \int_compare:nNnF \l_xparse_mandatory_args_int = \c_zero
+ {
+ \toks_put_right:Nx \l_xparse_grabbed_args_toks {
+ \exp_not:c{xparse_m
+ \int_use:N \l_xparse_mandatory_args_int
+ :w }
+ }
+ \int_zero:N \l_xparse_mandatory_args_int
+ }
+}
+\def_new:cpn {xparse_m1:w} #1 \l_xparse_grabbed_args_toks#2{
+ \toks_put_right:Nn \l_xparse_grabbed_args_toks{{#2}}
+ #1 \l_xparse_grabbed_args_toks
+}
+\def_new:cpn {xparse_m2:w} #1 \l_xparse_grabbed_args_toks #2#3{
+ \toks_put_right:Nn \l_xparse_grabbed_args_toks{{#2}{#3}}
+ #1 \l_xparse_grabbed_args_toks
+}
+\def_new:cpn {xparse_m3:w} #1 \l_xparse_grabbed_args_toks #2#3#4{
+ \toks_put_right:Nn \l_xparse_grabbed_args_toks{{#2}{#3}{#4}}
+ #1 \l_xparse_grabbed_args_toks
+}
+\def_new:cpn {xparse_m4:w} #1 \l_xparse_grabbed_args_toks #2#3#4#5{
+ \toks_put_right:Nn \l_xparse_grabbed_args_toks{{#2}{#3}{#4}{#5}}
+ #1 \l_xparse_grabbed_args_toks
+}
+\def_new:cpn {xparse_m5:w} #1 \l_xparse_grabbed_args_toks #2#3#4#5#6{
+ \toks_put_right:Nn \l_xparse_grabbed_args_toks{{#2}{#3}{#4}{#5}{#6}}
+ #1 \l_xparse_grabbed_args_toks
+}
+\def_new:cpn {xparse_m6:w} #1 \l_xparse_grabbed_args_toks #2#3#4#5#6#7{
+ \toks_put_right:Nn \l_xparse_grabbed_args_toks
+ {{#2}{#3}{#4}{#5}{#6}{#7}}
+ #1 \l_xparse_grabbed_args_toks
+}
+\def_new:cpn {xparse_m7:w} #1 \l_xparse_grabbed_args_toks#2#3#4#5#6#7#8{
+ \toks_put_right:Nn \l_xparse_grabbed_args_toks
+ {{#2}{#3}{#4}{#5}{#6}{#7}{#8}}
+ #1 \l_xparse_grabbed_args_toks
+}
+\def_new:cpn {xparse_m8:w} #1\l_xparse_grabbed_args_toks
+ #2#3#4#5#6#7#8#9{
+ \toks_put_right:Nn \l_xparse_grabbed_args_toks
+ {{#2}{#3}{#4}{#5}{#6}{#7}{#8}{#9}}
+ #1 \l_xparse_grabbed_args_toks
+}
+\def_new:cpn {xparse_m9:w} \toks_use:N \l_xparse_grabbed_args_toks
+ #1#2#3#4#5#6#7#8#9{
+ \toks_put_right:Nn \l_xparse_grabbed_args_toks
+ {{#1}{#2}{#3}{#4}{#5}{#6}{#7}{#8}{#9}}
+ \toks_use:N \l_xparse_grabbed_args_toks
+}
+\def_long_new:Npn \xparse_allow_par_m:w #1 \l_xparse_grabbed_args_toks#2{
+ \toks_put_right:Nn \l_xparse_grabbed_args_toks{{#2}}
+ #1 \l_xparse_grabbed_args_toks
+}
+\def_new:Npn \xparse_add_arg_type_l: {
+ \xparse_add_remaining_m_args:
+ \bool_if:NTF \g_xparse_allow_par_bool
+ {
+ \toks_put_right:Nn \l_xparse_grabbed_args_toks {\xparse_allow_par_l:w}
+ }
+ { \toks_put_right:Nn \l_xparse_grabbed_args_toks {\xparse_l:w} }
+}
+\def_new:Npn \xparse_l:w #1 \l_xparse_grabbed_args_toks#2#{
+ \toks_put_right:Nn \l_xparse_grabbed_args_toks{{#2}}
+ #1 \l_xparse_grabbed_args_toks
+}
+\def_long_new:Npn \xparse_allow_par_l:w #1 \l_xparse_grabbed_args_toks#2#{
+ \toks_put_right:Nn \l_xparse_grabbed_args_toks{{#2}}
+ #1 \l_xparse_grabbed_args_toks
+}
+\def_new:NNn \DeclareSymbolArgument 2{
+ \seq_map_variable:NNn \g_xparse_ignore_marker_seq \l_tmpa_tlp {
+ \def:cpx {xparse \l_tmpa_tlp _#1:w}##1##2\l_xparse_grabbed_args_toks{
+ \exp_not:c{peek_ #2 _remove \l_tmpa_tlp :NTF} ##1
+ {
+ \exp_not:N \toks_put_right:Nn \exp_not:N
+ \l_xparse_grabbed_args_toks \exp_not:N \c_true
+ ##2 \exp_not:N\l_xparse_grabbed_args_toks
+ }
+ {
+ \exp_not:N \toks_put_right:Nn \exp_not:N
+ \l_xparse_grabbed_args_toks \exp_not:N \c_false
+ ##2 \exp_not:N\l_xparse_grabbed_args_toks
+ }
+ }
+ }
+ \def:cpn {xparse_add_arg_type_#1:} {
+ \xparse_add_remaining_m_args:
+ \toks_put_right:Nx \l_xparse_grabbed_args_toks
+ { \exp_not:c {xparse \g_xparse_ignore_marker_tlp _#1:w } }
+ \let:NN \xparse_read_arg_type_or_grab_default:n \xparse_grab_default_arg:n
+ }
+}
+\DeclareSymbolArgument S{meaning}
+\def_new:NNn \DeclareArgumentType 7{
+ \seq_map_variable:NNn \g_xparse_ignore_marker_seq \l_tmpa_tlp {
+ \def:cpx {xparse \l_tmpa_tlp _#1:w}##1\l_xparse_grabbed_args_toks{
+ \exp_not:c{peek_#3 \l_tmpa_tlp :NTF} \exp_not:N #2
+ { \exp_not:c{xparse_#1_#3_help:nw}{##1} }
+ {
+ \exp_not:n {
+ #4 \toks_put_right:Nn \l_xparse_grabbed_args_toks {#5}
+ }
+ ##1 \exp_not:N\l_xparse_grabbed_args_toks
+ }
+ }
+ \def_long:cpx {xparse_allow_par \l_tmpa_tlp _#1:w}##1
+ \l_xparse_grabbed_args_toks{
+ \exp_not:c{peek_#3 \l_tmpa_tlp :NTF} \exp_not:N #2
+ { \exp_not:c{xparse_allow_par_#1_#3_help:nw}{##1} }
+ {
+ \exp_not:n {
+ #4 \toks_put_right:Nn \l_xparse_grabbed_args_toks {#5}
+ }
+ ##1 \exp_not:N\l_xparse_grabbed_args_toks
+ }
+ }
+ }
+ \def:cpn {xparse_add_arg_type_#1:} {
+ \xparse_add_remaining_m_args:
+ \toks_put_right:Nx \l_xparse_grabbed_args_toks {
+ \exp_not:c {xparse
+ \bool_if:NT \g_xparse_allow_par_bool {_allow_par}
+ \g_xparse_ignore_marker_tlp
+ _#1:w
+ }
+ }
+ \let:NN \xparse_read_arg_type_or_grab_default:n \xparse_parse_signature:n
+ }
+ \xparse_define_helper:Nnnn #1{#3}{#6}{#7}
+}
+\def_new:NNn \DeclareArgumentTypeDefaultValue 5{
+ \seq_map_variable:NNn \g_xparse_ignore_marker_seq \l_tmpa_tlp {
+ \def:cpx {xparse \l_tmpa_tlp _#1:w}##1##2\l_xparse_grabbed_args_toks{
+ \exp_not:c{peek_#3 \l_tmpa_tlp :NTF} \exp_not:N #2
+ { \exp_not:c{xparse_#1_#3_help:nw}{##2} }
+ {
+ \exp_not:N \toks_put_right:Nn
+ \exp_not:N \l_xparse_grabbed_args_toks {{##1}}
+ ##2 \exp_not:N \l_xparse_grabbed_args_toks
+ }
+ }
+ \def_long:cpx {xparse_allow_par \l_tmpa_tlp _#1:w}##1##2
+ \l_xparse_grabbed_args_toks{
+ \exp_not:c{peek_#3 \l_tmpa_tlp :NTF} \exp_not:N #2
+ { \exp_not:c{xparse_allow_par_#1_#3_help:nw}{##2} }
+ {
+ \exp_not:N \toks_put_right:Nn
+ \exp_not:N \l_xparse_grabbed_args_toks {{##1}}
+ ##2 \exp_not:N \l_xparse_grabbed_args_toks
+ }
+ }
+ }
+ \def:cpn {xparse_add_arg_type_#1:} {
+ \xparse_add_remaining_m_args:
+ \toks_put_right:Nx \l_xparse_grabbed_args_toks {
+ \exp_not:c {xparse
+ \bool_if:NT \g_xparse_allow_par_bool {_allow_par}
+ \g_xparse_ignore_marker_tlp
+ _#1:w
+ }
+ }
+ \let:Nc \xparse_read_arg_type_or_grab_default:n
+ {xparse_grab_default_arg
+ \bool_if:NT \g_xparse_allow_par_bool {_allow_par}
+ :n
+ }
+ }
+ \xparse_define_helper:Nnnn #1{#3}{#4}{#5}
+}
+\def_new:NNn \xparse_define_helper:Nnnn 4{
+ \toks_set:Nn \l_tmpa_toks
+ {
+ #3
+ {
+ \toks_put_right:Nn \l_xparse_grabbed_args_toks {{#4}}
+ ##1 \l_xparse_grabbed_args_toks
+ }
+ }
+ \toks_set:Nx \l_tmpa_toks {
+ \exp_not:n {\def:cpn{xparse_#1_#2_help:nw}}
+ \toks_use:N \l_tmpa_toks
+ \exp_not:n {\def:cpn{xparse_allow_par_#1_#2_help:nw}}
+ \toks_use:N\l_tmpa_toks
+ }
+ \toks_use:N \l_tmpa_toks
+}
+\DeclareArgumentType o[{meaning}{}{\NoValue}{#1[#2]}{#2}
+\DeclareArgumentType c({meaning}{
+ \xparse_error:x{
+ Missing~ coordinate~ argument.~ A~ value~ of~ (0,0)~ is~ assumed}
+ }
+ {{00}}
+ {#1(#2,#3)}{{#2}{#3}}
+\DeclareArgumentTypeDefaultValue O[{meaning}{#1[#2]}{#2}
+\DeclareArgumentTypeDefaultValue C({meaning}{#1(#2,#3)}{{#2}{#3}}
+\def_new:NNn \DeclareArgumentTypeShorthand 2{
+ \def_new:cpn {xparse_add_arg_type_#1:}
+ ##1 \xparse_read_arg_type_or_grab_default:n {
+ \int_decr:N \l_xparse_total_args_int
+ \xparse_read_arg_type_or_grab_default:n #2
+ }
+}
+\DeclareArgumentTypeShorthand s {S{*}}
+\let_new:NN \IfBooleanTF \bool_if:NTF
+\let_new:NN \IfBooleanT \bool_if:NT
+\let_new:NN \IfBooleanF \bool_if:NF
+\tlp_new:Nn \NoValue {-NoValue-}
+\tlp_new:Nn \c_xparse_hidden_no_value_tlp {\NoValue}
+\def_long_new:Npn \xparse_if_no_value:nTF #1{
+ \tlp_set:Nx \l_tmpa_tlp{\exp_not:n{#1}}
+ \tlp_if_eq:NNTF \l_tmpa_tlp \c_xparse_hidden_no_value_tlp
+ { \use_arg_i:nn }
+ { \tlist_if_blank:nTF {#1}
+ { \use_arg_ii:nn }
+ {\peek_after:NN \xparse_if_no_value_aux: #1 \q_nil {#1} }
+ }
+}
+\def_long_new:Npn \xparse_if_no_value_aux: {
+ \tlp_set:Nx \l_tmpa_tlp{\token_get_arg_spec:N \l_peek_token }
+ \tlp_if_empty:NTF \l_tmpa_tlp
+ {\use_arg_i_delimit_by_q_nil:nw {\exp_args:No\xparse_if_no_value:nTF}}
+ {\use_arg_i_delimit_by_q_nil:nw {\use_arg_iii:nnn}}
+}
+\let_new:NN \IfNoValueTF \xparse_if_no_value:nTF
+\def_long_new:NNn \IfNoValueT 2 {\xparse_if_no_value:nTF{#1}{#2}{}}
+\def_long_new:NNn \IfNoValueF 1 {\xparse_if_no_value:nTF {#1}{}}
+\def_long_new:NNn \IfValueTF 3{\xparse_if_no_value:nTF {#1}{#3}{#2}}
+\let_new:NN \IfValueT \IfNoValueF
+\let_new:NN \IfValueF \IfNoValueT
+\tlp_new:Nn \l_xparse_pseudo_post_arg_tlp {}
+\def_long_new:NNn \DeclarePseudoArgument 4{
+ \def_long:cNn {xparse_pseudo_pre_arg_#1:\prg_replicate:nn{#2}{n}}#2{#3}
+ \def_long:cNn {xparse_pseudo_post_arg_#1:\prg_replicate:nn{#2}{n}}#2{#4}
+ \def:cNn {xparse_pseudo_nobrace_arg_#1:N} 1 {
+ ##1 \l_xparse_pseudo_post_arg_tlp
+ }
+ \def_long:cNx {xparse_pseudo_arg_#1:w} #2
+ {
+ \exp_not:c {
+ xparse_pseudo_pre_arg_#1: \prg_replicate:nn{#2}{n}
+ }
+ \cs_use:c{def_aux_use_\int_use:N \int_eval:n{#2}_parameter:}
+ \exp_not:n {\tlp_set:Nn \l_xparse_pseudo_post_arg_tlp}
+ {
+ \exp_not:c {xparse_pseudo_post_arg_#1:\prg_replicate:nn{#2}{n}}
+ \cs_use:c{def_aux_use_\int_use:N \int_eval:n{#2}_parameter:}
+ }
+ \exp_not:n{ \peek_catcode_remove_ignore_spaces:NTF \c_group_begin_token }
+ {
+ \exp_not:n {
+ \c_group_begin_token
+ \group_execute_after:N \l_xparse_pseudo_post_arg_tlp
+ }
+ }
+ {
+ \exp_not:c{xparse_pseudo_nobrace_arg_#1:N}
+ }
+ }
+}
+\def_new:NNn \UsePseudoArgument 1{\cs_use:c{xparse_pseudo_arg_#1:w}}
+\endinput
+%%
+%% End of file `xparse.sty'.